<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="app">
      <!-- @click='点击方法()' -->
      <!-- 完整写法 -->
      <button @click="btnClick($event)">点击事件</button>
      <!-- 简写 -->
      <!-- <button @click="btnClick">点击事件</button> -->
    </div>
    <script src="./vue.js"></script>
    <script>
      new Vue({
        el: '#app',
        data: {},
        methods: {
          btnClick (e) {
            console.log(e)
          }
        }
      })
    </script>
  </body>
</html>
